Slewing bearing is certainly a large of bearing with unique structure that could bear integrated load just like axle load, radial load and overturning load. It combines support, rotating, tranny, fixed, sealed, anti-corrosion and various other functions into one device. Trusted in lifting machinery, building machinery, tranny machinery, mining and metallurgy machinery, medical tools and radar, deliver, wind power and additional industries.
Slewing bearings can be divided into many types according to their several structural forms, such as for example 4 point contact ball slewing bearing ,solo row cross roller slewing bearing, dual row contact ball slewing bearing, three row roller slewing bearing and so on. Each kind has different features according to its style and structure, rendering it suited to specific applications. For instance Single row four level get in touch with ball slewing bearings will be simple in structure, however they can bear large radial load, and will also bear certain axial and overturning loads. However, when the system has huge requirements on the precision and rigidity of the bearing, or the bearing needs to meet up with the zero clearance or unfavorable clearance operating circumstances, the cross cylindrical roller slewing bearing is definitely the correct choice.
Therefore, when choosing slewing bearings, the next aspects is highly recommended:
When the challenge of precision is to choose the dominant parameters, we usually opt for the cross roller slewing bearing because it has smaller sized clearance and higher accuracy.
The size of load is probably the critical indicators in determining the bearing size of slewing bearings. They can be used in a wide variety of applications where in fact the load size and way may change.
· Operating temperature
In most cases, the allowable operating temperature of a slewing band depends primarily on the isolation gasket and the sealing material used for lubrication. The allowable working temperature ranges from -25 to + 70°C. If slewing bearings are required to operate at extreme temperature ranges, please speak to our engineer .
For applications involving vibration, pre-loaded four-point speak to ball slewing bearings and cross cylindrical roller slewing bearings can be found.
· Turning speed
Four-point contact ball slewing bearings produce a smaller amount friction than cross-cylindrical roller slewing bearings, therefore the four-point contact ball slewing bearings likewise have higher rotational speeds.
Sealing is essential to the overall performance of slewing bearings. Skilled seals found in slewing bearings present good protection against wetness and pollution, and make certain that grease plays a crucial part. If slewing bearings do the job under extreme conditions, such as exposure to water, vacuum, corrosive contaminants or radiation, please speak to our technical engineers for specific solutions.
Kaydon slewing bearings
Kaydon slewing bearing solutions are ideal for:
Optimal economy in confirmed envelope dimension
Heavy-duty applications requiring significant load-carrying capacity
Styles where precise positioning is crucial
The initial requirements of wind generators
Kaydon’s slewing bearings provide a wide variety of alternatives for the most demanding requirements in a number of applications, including:
Aerospace and defense
Oil & gas
Semiconductor manufacturing equipment
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The Kaydon slewing bearing selector permits you to search our standard slewing bearings by part number or bearing requirements. Benefits involve load charts and downloadable 3D drawings.